The Top Composite 3D Printers on the Market in 2025

In the 3D printing sector, manufacturers are increasingly looking for composite materials because they offer more interesting mechanical properties, particularly in terms of resistance. Here, the material in question, includes a “matrix” (most often a thermoplastic) that is reinforced with fibers – carbon, aramid, glass – thus increasing the strength of the final part, reducing its total weight and even replacing the use of metal. Today, most desktop FDM 3D printers can print composite filaments as long as they have a hardened steel nozzle. However, these machines do not allow the fibers to be deposited directly into the matrix material during printing. Still, there are a number of manufacturers that have developed solutions capable of extruding both the matrix and the fibers to obtain even stronger parts. We have therefore selected a few composite 3D printers based on different technologies, capable of mixing two materials during printing – they are sorted by alphabetical order.

9T Labs and its Red Series Solution

Founded in 2018, 9T Labs is a Swiss manufacturer specializing in composite 3D printing. Its process, Additive Fusion Technology, enables continuous carbon fibers to be deposited in a polymer matrix in an automated, controlled manner. This is achieved via the Red Series, which comprises the print unit, Build Module, and the post-processing machine, Fusion Module. The 3D printer is capable of placing continuous fibers according to the orientation and trajectories chosen by the operator in the design and 3D file preparation phase. This optimizes the weight and cost of the part, and guarantees optimum solidity. If certain parts of the part do not require continuous fibers, the 3D printer fills them with a conventional polymer, or even a short-fiber-reinforced plastic. The machine is equipped with several sensors to monitor the entire printing process, as well as a temperature management system to minimize moisture build-up and ensure good adhesion between layers. Finally, if we turn our attention to the Fusion Module, the machine enables compression molding to achieve the best performance in terms of surface finish, consolidation and part quality. If you’d like to find out more about 9T Labs’ manufacturing process, take a look at the video below: